The three musketeers!

Algebra Level 1

Consider 3 real numbers $$a,b,c \neq 0$$ satisfying $$a+b+c=0$$

Find the value $\dfrac{a^2}{bc}+\dfrac{b^2}{ac}+\dfrac{c^2}{ab}$

This is an original problem and belongs to the set My creations

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